The Influence of Laser Processing Applications for Leather Laminates Comfort
Keywords:
laminated leather, microporous membrane, water vapour permeability, absorption, perforation area.Abstract
In this paper the investigations of moisture transfer through microporous membrane laminated leather are presented. To
improve the comfort features, the leather was laser-processed using molecular gas CO2 and laminated with microporous
breathable PU membrane. The influence of microporous membrane and geometrical parameters of laser cutting
perforation on the leather laminate comfort properties has been investigated. Lamination with microporous membrane
increases leather resistance to water penetration, decreases the water vapour permeability and intensifies the water
vapour absorption. Herewith laser cutting perforation is opening the cutting surface of holes, which is able to improve
the vapour penetration and sorption. The water vapour permeability and absorption were directly dependent on
perforation area.
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